Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/600745
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dc.contributor.authorTARRAND, J. J.pt_BR
dc.contributor.authorKRIEG, N. R.pt_BR
dc.contributor.authorDOBEREINER, J.pt_BR
dc.date.accessioned2017-06-19T23:50:00Z-
dc.date.available2017-06-19T23:50:00Z-
dc.date.created1995-06-27pt_BR
dc.date.issued1978pt_BR
dc.identifier.citationCanadian Journal of Microbiology, v.24, n.8, p.967-980, 1978.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/600745pt_BR
dc.descriptionSixty-one strains of the root-associated nitrogen fixer Spirillum lipoferum exhibited a similar morphology in peptone--succinate salts medium: vibrioid cells having a diameter of 1.0 micrometer. When grown in broth the cells had a single polar flagellum, but when grown on agar at 30 degrees C lateral flagella of shorter wavelength were also formed. The DNA base composition was 69--71 mol% guanine + cytosine when determined by thermal denaturation. DNA homology experiments indicated the occurrence of two distinct but related homology groups: 46 strains were in group I and 15 strains were in group II. Group II strains were distinguished by their ability to use glucose as a sole carbon source for growth in nitrogen-free medium, by their production of an acidic reaction in a peptone-based glucose medium, by their requirement for biotin, and by their formation of wider, longer, S-shaped or helical cells in semisolid nitrogen-free malate medium. The results indicate that two species exist, and on the basis of their characteristics it is proposed that they be assigned to a new genus, Azospirillum. Strians belonging to group II are named A. lipoferum (Beijerinck) comb. nov., while those belonging to group I are named A. brasilense sp. nov. Strain Sp 59b (ATCC29707) is proposed as the neotype strain for A. lipoferum, and strain Sp 7 (ATCC 29145) is proposed as the type strain for A. brasilense.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectUAPNPBSpt_BR
dc.titleA taxonomic study of the Spirillum lipoferum group, with descriptions of a new genus, Azospirillum gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-06-19T23:50:00Zpt_BR
dc.subject.thesagroFisiologiapt_BR
dc.subject.thesagroGramíneapt_BR
dc.subject.thesagroRaizpt_BR
dc.subject.thesagroRizosferapt_BR
dc.subject.thesagroTaxonomiapt_BR
dc.subject.nalthesaurusAzospirillum brasilensept_BR
riaa.ainfo.id600745pt_BR
riaa.ainfo.lastupdate2017-06-19pt_BR
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